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34638005 = 531435197
BaseRepresentation
bin1000010000100…
…0100010110101
32102011210102002
42010020202311
532331404010
63234225045
7600263303
oct204104265
972153362
1034638005
1118609056
12b725185
13723a07c
144859273
1530931a5
hex21088b5

34638005 has 16 divisors (see below), whose sum is σ = 43912704. Its totient is φ = 26187840.

The previous prime is 34638001. The next prime is 34638011. The reversal of 34638005 is 50083643.

It is not a de Polignac number, because 34638005 - 22 = 34638001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34638001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4067 + ... + 9263.

It is an arithmetic number, because the mean of its divisors is an integer number (2744544).

Almost surely, 234638005 is an apocalyptic number.

It is an amenable number.

34638005 is a deficient number, since it is larger than the sum of its proper divisors (9274699).

34638005 is a wasteful number, since it uses less digits than its factorization.

34638005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 34638005 is about 5885.4061032354. The cubic root of 34638005 is about 325.9749971415.

The spelling of 34638005 in words is "thirty-four million, six hundred thirty-eight thousand, five".

Divisors: 1 5 31 43 155 215 1333 5197 6665 25985 161107 223471 805535 1117355 6927601 34638005